*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  overflow-x: hidden;
}

/* Hero Gradient */
.hero-gradient {
  background: linear-gradient(135deg, #0f766e 0%, #115e59 30%, #1e293b 60%, #0f172a 100%);
}

.hero-blob-1 {
  background: radial-gradient(circle, rgba(45, 212, 191, 0.4) 0%, transparent 70%);
  top: 10%;
  left: -5%;
  animation: float 8s ease-in-out infinite;
}

.hero-blob-2 {
  background: radial-gradient(circle, rgba(20, 184, 166, 0.3) 0%, transparent 70%);
  bottom: 10%;
  right: -5%;
  animation: float 10s ease-in-out infinite reverse;
}

.hero-blob-3 {
  background: radial-gradient(circle, rgba(14, 165, 155, 0.3) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: pulse-blob 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-30px) rotate(5deg); }
}

@keyframes pulse-blob {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.1; }
  50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.2; }
}

/* Hero Animations */
.hero-tag {
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.2s;
}

.hero-title {
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.4s;
}

.hero-subtitle {
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.6s;
}

.hero-buttons {
  opacity: 0;
  animation: fadeUp 0.8s ease forwards 0.8s;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll Line */
.scroll-line {
  animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* Reveal Animations */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }

/* Section Styles */
.section-label {
  letter-spacing: 0.15em;
}

.section-title {
  letter-spacing: -0.02em;
}

.section-desc {
  line-height: 1.7;
}

/* Service Cards */
.service-card {
  transition: transform 0.5s ease, border-color 0.5s ease, box-shadow 0.5s ease;
}

.service-card:hover {
  transform: translateY(-4px);
}

/* Navbar */
.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

/* Mobile Menu */
.mobile-link {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

#mobileMenu.open .mobile-link {
  opacity: 1;
  transform: translateY(0);
}

#mobileMenu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobileMenu.open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
#mobileMenu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
#mobileMenu.open .mobile-link:nth-child(4) { transition-delay: 0.25s; }

/* Menu Button */
.menu-line {
  transition: transform 0.3s ease, opacity 0.3s ease;
}

#menuBtn.active .menu-line:nth-child(1) {
  transform: rotate(45deg) translate(3px, 3px);
}

#menuBtn.active .menu-line:nth-child(2) {
  opacity: 0;
}

#menuBtn.active .menu-line:nth-child(3) {
  transform: rotate(-45deg) translate(3px, -3px);
  width: 1.25rem;
}

/* Navbar scroll state */
.nav-scrolled {
  background: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

.nav-scrolled .nav-link {
  color: #475569 !important;
}

.nav-scrolled .menu-line {
  background: #475569 !important;
}

/* Button hover effects */
.hero-btn-primary {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.hero-btn-primary:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
  transform: translateY(-2px);
}

.hero-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* Form focus states */
input:focus, textarea:focus {
  border-color: #2dd4bf !important;
  box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.1) !important;
}

/* Selection */
::selection {
  background: rgba(13, 148, 136, 0.15);
  color: #0f766e;
}

/* Smooth image rendering */
img {
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
}